NEC Versa Series manual Post Error Messages, Solving System Problems

Post Error Messages

The NEC Versa computer has a built-in checking program that automatically tests its components when you turn the system power on. This diagnostic test is called the Power-On Self-Test (POST). If the system finds a problem during the POST, the system displays an error message or emits a series of beep signals. If this happens, follow the instructions in the POST Error Messages table or the Beep Code table, as appropriate.

If an error message appears before the operating system starts, look up the error message in the following table. Follow the instructions. If you see other error messages, the hardware might need repair.

	Post Error Messages
Message	Resolution
Address line is short	Error in the address decoding circuitry on the system
	board. Contact your NEC Computers service
	representative for service.
C: Drive Error	Hard disk drive C: does not respond. Confirm that C:
	hard disk type in Setup is correct.
C:Drive Failure	Hard disk drive C: does not respond. You may need to
	replace the hard disk drive. Contact your NEC
	Computers service representative for service.
Cache Memory Bad, Do	Cache memory is defective. It must be replaced.
Not Enable Cache	Contact your NEC Computers service representative
	for service.
CH-2 Timer Error	Most ISA computers include two timers. There is an
	error in timer 2. Contact your NEC Computers service
	representative for service.
CMOS Battery State Low	CMOS RAM is powered by a battery. The battery
	power is low. Connect the system to AC power to
	charge the CMOS battery. If the battery does not
	charge, contact your NEC Computers service
	representative to replace the CMOS battery.
CMOS Checksum Failure	After CMOS RAM values are saved, a checksum value
	is generated for error checking. The previous value is
	different from the current value. Run Setup to reset the
	value.
CMOS System Options	The values stored in CMOS RAM are either corrupt or
Not Set	nonexistent. Run Setup to reset the value.

10-4 Solving System Problems